Adjustable crusher-head.



E. L. PEMBERTON.

ADJUSTABLE GRUSHER HEAD.

APPLIUATION FILED AUG. 1913.

Mmmm. Patente-a Mar. V1o, 19144 INVENTR TTRNEYS EDWARD LOUIS PEMBERTON, OF NEW HAVEN, CONNECTICUT.

ADJUSTABLE cRUsHEnHEAn.

Losaam.

To all whom 'it may concern Be it known that I, EDWARD L. PEMBER- TON, a citizen of the United States, and a resident of New Haven, in the county of New Haven and State of Connecticut, have invented a new and Improved Adjustable Crusher-Head, of which the following is a full` clear, and exact description.

My invention relates to crusher heads which may be used for rock and other similar Crushers and which are customarily mounted on a main shaft. These erusher heads are usually manufactured from east manganese steel 'to provide the necessary hardness, but as Crusher heads when made of this material work loose on the shaft.Y means must be provided for adjusting and tightening the crusher head on the shaft from time to time.

The means which I provide for adjusting and securing the Crusher head to the shaft consist of a core which may be made integral with the shaft or which may be secured thereon, this core being preferably conical in shape. The mantle which forms the outer portion of the crusher head has a conical opening in which the core fits. This mantle is drawn down on the core by means of a screw, which is disposed in 4an orifice in a lug on a key and which meshes in a threaded orifice 1n an inwardly disposed lug of the mantle, the lugs and the screw being disposed in a recess in the core and the key being disposed in a keyway in the core adjacent the recess. The end of the screw abuts against the core at the end of the recess and when the screw is turned, the lug of the mantle is drawn back relatively to the screw, carrying with it the mantle and the key. In this way the mantle is drawn downrelatively tothe core and is secured firmly thereto.

As shown in the drawings, I prefer to provide the core with four guideways and four recesses communicating therewith. the mantle having four lugs which fit in these recesses and which `engage the lugs on the keys disposed in the keyways, in the manf ner fully disclosed in the drawings.

Still further objects of the invention will appear in the following complete description in which the preferred form of invention is disclosed in the drawings.

Similar characters-of reference indicate Specification of Letters Patent.

Application filed August 6, 1913.

Patented 'Mai'. 10, 1914.

Serial No. 783,271.

corresponding which- Figure 1 is a side sectional elevation of my invention; Fig. 2 is a sectional view o n the line 2-2 of Fig. 3; Fig. 3 is a sectional view on the line 3-3 of Fig. 1: Fig. f1 is a sectional view on the line L1-1 of Fig. 2; and Fig. 5 is a perspective view, showing one of the keys with its lug. Y

By referring to the drawings, it will be seen that the shaft 5 has a conicalportion 6 around which is disposed the core member 7, this core member 7 being held down on this conical portion 6 of the shaft 5 by means of the locking nuts 8, which mesh with the thread 9 on the shaft 5. However, if desired, the core member 7 may be constructed integral with the shaft. The outer surface of this core member 7 is conical and through its conical outer surface, there are cut keyways 10 which aredisposed longitudinally of the shaft 5. These keyways 10 are referably four in number and adjacent eac of the keyways 10, there is a recess 11 which extends through the outer conical surface of the core member 7. Disposed around the core member 7 there is a conical mantle 12 which has a wearing member 13, which may be replaced when desired. This conical mantle 12 with its wearing member 13 lits snugly against the conical outer surface of thecore member 7 and the conical mantle 12 has inwardly extending lugs 14, which are disposed in the recesses 11 in the core member 7. There are also disposed in the recesses 11, the lugs 15 which extend from the keys 16 disposed in the keyways 10, these lugs 15 having orifices 16 through which the'serews 17 are disposed, these screws meshing in threaded orifices 18 in the lugs 14, with the ends 19 of the screws abutting against the core member 7 at the ends of the recesses 11.

It will be seen that when the screws 17 are turned, they will draw the lugs 14 back from the core member 7 at the ends of the recesses 11, where the ends 19 of the screws 17 abut against the core member. In this parts in all the views, in

way the mantle may be drawn bark to hold it snug around the core member 7. When the lugs 111 with the mantle 12` are drawn back by the turning of the screws 17, the lugs 14 carry with them the lugs 15 thereby moving the keys 1G backward with the so j mantle, so that the keys 16 will not project to prevent the movement of the man-tile face engaging the outer conical surface of the core member 7, to prevent any movement of the mantle 12 relatively to the core member 7 when the shaft 5 is rotated. The sides of the lugs 14 and 15 are disposed radially and the sides of the recesses 11 are` also radially disposed. v

' Having thus described my invention, I claim as new and desire to secure by Letters Patent: Q y

1. In an adjustable crusher head, a core member having'an outer surface, a mantle disposed around the` core member` and having an inner surface engaging the outer surface of the core member, one of the members at its said surface decreasing in diameter in one direction, there being a recess in one of the members through its said surface, a lug on the other member extending into the recess and having a threaded orifice, and a screw meshing in the threaded orifice and free for movingrlongitudinally of the core member for engaging the member having the recess at the end thereof. 2. In an adjustablefcrusher head, a conical core member, a mantle member disposedaround the core member and having a conical opening, the inner surface of the mantle member and the outer surface of the core member engaging each other, a keyway and a connecting .recess in one of the members and extending through its said surface, a lug on the other member extending into the recess and provided with a threaded orifice, a key in the keyway and having a lug with an orifice, the last-mentioned lug extending into the recess, and a screw disposed through the orifice in the last-mentioned lug and meshingin the threaded orifice in the firstmentioned lug and abutting against the member having the recess at the end thereof for the purpose specified.

8. In an adjustable Crusher head, .a core member having an outer surface,a mantle member disposed around the core member and having an inner surface engaging the outer surface of the core member, one of the members at its said surface decreasing in diameter in one direction, there being a plurality o f longitudinally extending keyways spaced apart in the said surface of the. core member, there being a recess in the core member communicating with each of the keyways, keys in the keyways with lugs having orifices and extending into the recesses, a plurality of inwardly extending lugs on the mantle provided with threaded orifices and extending into the recesses, and

4screws disposed through the orifices in the .member and extending through the outer surface of the core member, there being recesses extending through the outer surface of the core member, one communicating with each of the keyways, lugs with threaded orifices on the mantle and extending into the recesses, screws meshing in the threaded orifices and engaging the core member at `the ends of the f/recesses, and keys free from the mantle member, the keys being disposed in the key-ways and provided with lugs engaged by the first lugs to be moved thereby.

5. In an adjustable crusher head, a conical core member, a mantle member having a conical opening in which the core member is disposed, there being longitudinally extending `keyways spaced apart around the ,core member and extending through vthe 'lugs to be moved thereby, and means for moving the first-mentioned lugs relatively to the core member.

6. In an adjustable crusher'hea'd, a core member having an outer surface, a mantle disposed around the core member and having an inner surface engaging the outer sur' face of the core member, one of the members at its said surface decreasing -in diameter in vone direction, there being in the core member a longitudinally extending keyway and a lateral recess connected therewith, the mantle having a lug with a threaded orifice for moving in the keyWay and from the keyway into the recess, a keyfor moving in the keyway to the side of the lug for holding the lug in the recess, and a screw meshing in the threaded orifice for. engaging the mantle at' the end of the recess.

In testimony whereof I have signed my name to this specification in the presence o the subscribing witnesses.

EDIARD LOUIS PEMBERTON.

Witnesses: 4

GEORGE M. Junin, 4CnnssirAN Krr'rnnncn, CnAs. E. SnLovEn. 

